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665 results for “ant diversity”
FIGURES 103–104 in Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae)
FIGURES 103–104. Orasema kaspi. ♀: 103. Propodeum. 104. Petiole.
FIGURES 137–138 in Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae)
FIGURES 137–138. Orasema mati. Holotype ♀: 137. Propodeum. 138. Petiole, hind coxa.
FIGURES 75–76 in Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae)
FIGURES 75–76. Orasema evansi. ♀: USA form: 75. Propodeum. 76. Petiole.
Fig. 7 in Fossil ants (Hymenoptera: Formicidae): ancient diversity and the rise of modern lineages
Fig. 7: Map of fossil deposits with described taxa.
Fig. 6 in Fossil ants (Hymenoptera: Formicidae): ancient diversity and the rise of modern lineages
Fig. 6: An assemblage of the highly ab
Figures 3-11 in Ant diversity of an urban garden with a new record from India
Figures 3-11. Ants collected from Agri-Horticultural Society of India, Kolkata. LV = lateral view, FV = frontal view, DV = dorsal view.
Figure 1 in The diversity of ants in moderately isolated islands of Japan: towards understanding of factors affecting their colonisation success
Figure 1. Location of the study islands and the main-island reference regions.
Linked collectors and determiners for: Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae).
Natural history specimen data linked to collectors and determiners held within, "Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/d89af63d-c093-4908-bd61-2b26133bb7d6">https://bionomia.net/dataset/d89af63d-c093-4908-bd61-2b26133bb7d6</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/d89af63d-c093-4908-bd61-2b26133bb7d6">https://gbif.org/dataset/d89af63d-c093-4908-bd61-2b26133bb7d6</a>. Formatted as a Frictionless Data package.
Data from: The truncated bell: an enigmatic but pervasive elevational diversity pattern in Middle American ants
Studies on elevation gradients in Panama and Costa Rica have shown that leaf-litter ants exhibit a mid-elevation peak in diversity. This diversity pattern has been observed in other groups and regions, but uncertainty remains as to just how pervasive it is and what might explain it. Here we examine the robustness of the mid-elevation peak in ant diversity across the entire Middle American corridor, from Veracruz, Mexico, to Costa Rica. We sampled 56 sites distributed throughout Middle America. All were in closed-canopy evergreen wet forest, spanning 11° latitude, from near sea level to 2600 m elevation. Ants were extracted from 100 litter samples from each site and identified to genus or species. Model selection was performed on richness and diversity variables to test if ant diversity best fits a linear model or one allowing for a mid-elevation peak. Linear models were also used to examine the relationships among diversity measures and temperature, precipitation, and seasonality. Species richness measures and diversity indices that incorporate relative abundance show a similar relationship to elevation throughout the region: a truncated bell curve with a mode near 400 m. A cubic relationship is statistically favored over quadratic or linear. Temperature is a significant correlate with diversity, but does not predict a bell-curve. Precipitation and precipitation seasonality fail to explain much of the variability, and no combination of environmental variables predicts a bell curve. Potential causes of the truncated bell curve include lowland biotic attrition, mid-point attractors, and ecotonal transitions from lowland to montane communities. Analysis of 17 subclades within ants mostly showed the same truncated curve but six clades were anomalous. Distinctive behavioral or historical features potentially explain their patterns.
β diversity among ant communities on fragmented habitat islands: the roles of species trait, phylogeny and abundance
<p class="MsoCommentText">Habitat loss and fragmentation reduce biodiversity and alter species composition in local communities. β diversity describes the variation in species composition between or among communities in fragmented landscapes and has two components: species turnover and nestedness. In this study, we assessed β diversity of ant assemblages on 24 island fragments in the Thousand Island Lake, China. We constructed a species-level phylogenetic tree and measured five morphological traits of all ant species captured. We then assessed taxonomic (both incidence-based and abundance-weighted), functional, and phylogenetic β diversity and partitioned β diversity into turnover and nestedness (as well as the contributions of particular species and particular islands). Finally, we examined the relationships between β diversity and a suite of geographical variables (i.e., difference in island area, difference in isolation and inter-island distance) using Mantel tests. We found taxonomic and phylogenetic turnover components dominated overall β diversity whereas the functional turnover and nestedness components contributed equally to overall β diversity. Overall β diversity increased with increasing differences in isolation and inter-island distance, however, only abundance-weighted overall β diversity decreased with increasing differences in island size. Our results indicate that species that were abundant on large islands were also abundant on small islands. We conclude that dispersal limitation of ants likely shapes the pattern of β-diversity along isolation and inter-island distance gradients. Additionally, functional redundancy of species (i.e., different species share similar functional roles) could also explain β-diversity patterns among fragmented habitat islands. Our results highlight the necessity of incorporating both incidence-based and abundance-weighted community data when examining β diversity in fragmented landscapes. By partitioning β diversity into the contributions of particular species and particular fragments, our study implies that small patches can be valuable for maintaining biodiversity among ant communities.</p>
Figure 8 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 8 - Tetramorium gilgamesh holotype worker (CASENT0247312). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 65 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 65 - Geographic distribution maps for the species of the Tetramorium schaufussii species complex I. Star symbols represent type localities while circles represent non-type localities.
Figure 62 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 62 - Geographic distribution maps for the species of the Tetramorium plesiarum species group. Star symbols represent type localities while circles represent non-type localities.
Figure 6 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 6 - Tetramorium dalek holotype worker (CASENT0038402). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 9 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 9 - Tetramorium naganum holotype worker (CASENT0280584). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 59 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 59 - Tetramorium xanthogaster holotype worker (CASENT0101146). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 7 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 7 - Tetramorium enkidu holotype worker (CASENT0056450). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 57 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 57 - Tetramorium scutum holotype worker (CASENT0189116). A Body in profile B Body in dorsal view C Head in full-face view.
Figure 61 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 61 - Geographic distribution maps for the species of the Tetramorium naganum species group. Star symbols represent type localities while circles represent non-type localities.
Figure 58 from: Hita Garcia F, Fisher B (2014) The hyper-diverse ant genus Tetramorium Mayr (Hymenoptera, Formicidae) in the Malagasy region ‑ taxonomic revision of the T. naganum, T. plesiarum, T. schaufussii, and T. severini species groups. ZooKeys 413: 1-170. https://doi.org/10.3897/zookeys.413.7172
Figure 58 - Tetramorium sikorae syntype worker of junior synonym Tetramorium latior (CASENT0101141). A Body in profile B Body in dorsal view C Head in full-face view.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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